1&period; Make the logo on the products as the customers design&period;2&period; It can preload the file into the USB drive and make the file non-delete&period;3&period; It can autoplay when plug the USB into the computer&period;4&period; Available capacities&colon; 256MB&comma; 512MB&comma; 1G&comma; 2G&comma; 4G&comma; 8G&comma; 16GB&comma; 32GB&period;